I have using 8 control points and 4500 images.i have create 2 separate projects. Export to component then create a new project then import component part align images.The output of the bridge broken . How to rectify this problem.Our system configuration Intel core i7-6700@3.4ghz,32GB RAM, Graphics Card -Quadro P1000 it is enough for this project.
if I understand you correctly, you would like to get more images registered in the project, especially where the bridge goes,
it seems that you will need to use much more control points; it could be also worth adding more pictures to the project and, if there are any of low quality inputs, removing them from the dataset and reprocess the whole scene anew (possibly together with “tweaking” the settings) may also help